C68L IP67 Waterproof Smart Bracelet Sport Fitness Tracker 1. Multiple health monitoring: Measure important physiological indicators such as heart rate, blood pressure, and blood oxygen saturation in real time. It can also monitor and record sleep data, including sleep duration and sleep quality information. 2. Convenient life assistant: The smart watch not only displays date and weather information, but also supports viewing notifications such as text messages and phone calls (which can be rejected). In addition, this watch also has a music function that can control music playback on your mobile phone; it supports up to 25 sports modes. 3. Personalized reminders and records: This watch has water reminders, sedentary reminders, and 8 sets of smart alarm clocks. In addition, for female users, this watch can track and predict menstrual cycles and provide corresponding reminder and recording functions. At the same time, the tracker also supports weight recording and stopwatch functions. 4. Home data viewing and power saving mode: Fitness has a power saving mode to extend battery life. Supports adding multiple members, allowing family data interoperability to check each other, enabling remote viewing of family members' health data, and better understanding of each other's physical condition. Parameters: 1. System compatibility: Apple iOS 9.0 and above, Android 5.0 and above 2. Bluetooth version: Bluetooth 5.0 or above 3. Suitable for wrist size: 145-230 mm 4. Battery life: 14 days of use in typical scenarios 5. Standby time: 30 days 6. Battery capacity: 90mAh (12 days of working, 30 days of standby) 7. Screen size + resolution: 0.96-inch high-definition color screen, 80(R.G.B)x160 resolution high-definition square screen 8. Information reminder: call reminder (numbercontact), call rejection, SMS, QQ, WeChat, WhatsApp, Facebook, Twitter, Line, Skype, Instagram, LinkedIn, VK, Kakao 9. Supported languages: English (default), German, French, Spanish, Japanese, Simplified Chinese, Traditio